Shockers (formerly known as Shock Tarts and SweeTarts Shockers) are a sour and chewy variation on the popular SweeTarts.[1] The original Shock Tarts were developed by Sunmark Candy company, a subsidiary of Nestlé, in St. Louis, Missouri, in the early 1990s. Shock Tarts have since been discontinued. Then in the year 2005, they were rereleased and marketed as "Shockers" under the The Willy Wonka Candy Company brand.[2] As of December 2014, they have been re-branded as SweeTarts Chewy Sours